• Feeding • Reproduction • Respiration • Excretion
• Locomotion • Sensitivity • Growth • Osmoregulation
Found in fresh water, especially in decaying organic matter.
HOMEWORK
Questions 1) State 3 main functions of organelles. 2) Explain the relationship between the density of mitocondria and active cells.
CELLS TISSUES ORGANS SYSTEMS ORGANISMS
CELLS TISSUES 4 types of tissues
Muscles & Tissues cells
Made up of cells which are similar in structure and functions and all are working together to perform a specific activity.
Made up of tissues that work together to perform specific functions.
Eye
ORGANS Liver
Brain
Some organs perform more than one functions
SYSTEMS
Also known as a organ systems. Groups of two or more organs that work together to perform specific functions for the organisms.
Digestive System
Respiratory System
Circulatory System
Excretory System
Sensory System
Nervous System
Skeletal System
Muscular System
Endocrine System
Lymphatic System
Reproductive System
ORGANISMS
CELLS
TISSUES
GROUND TISSUE
Storage , Metabolism , Support
3 types of tissues
DERMAL TISSUE
Covering , Protection
VASCULAR TISSUE
Transport Water & Food
ORGANS
4 types of organs
SYSTEMS 2 types of systems SHOOTS SYSTEMS
ROOTS SYSTEMS
ORGANISMS
HOMEWORK
Questions 1) For each systems (organs systems) in human, state the main components and its functions.
• fluid surrounding the cells • known as tissue fluid @ interstitial fluid • fills narrow spaces between cells • cells receive nutrients and oxygen from bloodstream through tissue fluid
4 components of blood: i) Plasma ii) White Blood Cell iii) Platelets iv) Red Blood Cell
Blood plasma squeezed throu capillary walls spaces betwee
Blood flows in capillaries
Blood plasma squeezed through capillary walls into spaces between cells
pH value temperature
Osmotic pressure
Glucose level
RECEPTORS detects stimulus and and start start corrective mechanism mechanism STIMULUS (above normal)
NEGATIVE feedback NORMAL NORMAL CONDITIONS CONDITIONS
NORMAL NORMAL CONDITIONS CONDITIONS STIMULUS (below normal) RECEPTORS detects stimulus and and start start corrective mechanism mechanism
NEGATIVE feedback
PANCREAS PANCREAS detects detects high high blood blood glucose glucose level. level. Secrete Secrete more INSULIN INSULIN Glucose level increase
Convert Glucose Glycogen Normal Normal Glucose Glucose Level Level
Normal Normal Glucose Glucose Level Level Glucose level decrease PANCREAS PANCREAS detects detects low low blood blood glucose glucose level. level. Secrete Secrete more GLUCAGON. GLUCAGON.
Convert Glycogen Glucose
Muscles cells
Neurone
Red Blood Cell
White Blood Cell
Produce movement
Conduct nerve impuls
Transport oxygen
Destroys microorganism
Palisade mesophyll cell
Xylem & Phloem
Maximise photosynthesis
Transport water & food